Under normal conditions (uncatalysed) "X" - gal substance is in
(A) Blue colour
(B) Green colour
(C) Red colour
(D) Colourless

Blue colour of blue -green algae is due to

Colour blindess is a recessive sex-linked trait in which the eye fails to distinguish (a) Red and gree colours (b) Red and yellow colours (c) Green and blue colours (d) Red and blue colours

Out of 1000 small coloured bulbs 81^(3//2) are of white colour 5^(3) are red coloured , 2^(6) are green coloured & rest are blue coloured . What is the probability that bulb chosen is . (i) blue coloured (ii) red coloured (iii) white coloured .

The colour producing substances used to impart green colour to glass is

There is a cubical box of edge 6 cm. it s top and bottom are covered with red colour canvas and the other four faces is coverd with blue colour canvas. How much red colour and blue colour canvas cloth is required ?

Consider following sets : Blue colour solution changes to colourless ( or fades ) in

In colour blindness red , green and other colour appear